I buy this amp chips for € 5 there to this 3months.
I am quite satisfied.
I make some changes anyway namely adding a fan to the rediateur (I thought it was heating a lot) and the change of the lamp (grilled) deriere "New classA synchro bias" by a blue diode.
Connect on S177 scott sound is correct and the amp has power to spare!
In the final here is a very good amp for debuter!